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rfConnect was bonding with my DK-52 and no longer does.

AllenS

During the development process, I had no trouble bonding with the rfConnect (current version from the website).  After many changes to code, I got it to bond one time and deleted the bond again and now it will no longer bond between the DK-52 and the rfConnect App.  I have not changed any of the code that relates to the BLE portion of the HeartRateMonitor demo App.  I have only been experimenting with the Battery Service portion of the demo.  I have no trouble seeing the device in rfConnect but it will not allow bonding or pairing anymore.  Any ideas?

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  • +1

    Hi Allen Shea, 

    Please clarify: 

    - Is it the nRF Connect app on Android/iOS or it's the nRF Connect app on PC ? 

    - If you do a chip erase to clear any previous bond stored on the chip , can you bond to the nRF Connect app ? 

    Please note that by default zephyr won't allow re-pair meaning if the peer device lose the bond information you must explicitly remove bonding on the local device (calling bt_unpair() ) to be able to bond again. 

    Or you can use BT_SMP_ALLOW_UNAUTH_OVERWRITE=y to allow unauthentication (just work) bonding to be able to replace previous bond.  

  • 0 in reply to Hung Bui

    Hello Hung Bui,

    Thank you for your responses.  I will try them and see what happens.  I am using the Segger IDE.  Is there a way to do a chip erase from there or do I need to use the command line utilities to perform that?

    What is zephyr?

    I was using the nRF Connect app on the Android.  I did not think to try using the PC.  I was deleting the bond/pair information from the android because every time I made changes to the firmware on the chip and reprogrammed to test with the HRM app under nRF Toolbox the unit would no longer bond.  I would go into the nRF Connect app and delete the bond/pair information and then exit the app and restart and do the bond with the newer firmware that needed to be tested.  That worked for a little while and now it does not work.

    Thanks,

    Allen Shea

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  • 0 in reply to Hung Bui

    Hello Hung Bui,

    Thank you for your responses.  I will try them and see what happens.  I am using the Segger IDE.  Is there a way to do a chip erase from there or do I need to use the command line utilities to perform that?

    What is zephyr?

    I was using the nRF Connect app on the Android.  I did not think to try using the PC.  I was deleting the bond/pair information from the android because every time I made changes to the firmware on the chip and reprogrammed to test with the HRM app under nRF Toolbox the unit would no longer bond.  I would go into the nRF Connect app and delete the bond/pair information and then exit the app and restart and do the bond with the newer firmware that needed to be tested.  That worked for a little while and now it does not work.

    Thanks,

    Allen Shea

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